Police in northwest Pakistan say a suicide bomber has struck near a market, killing at least 18 people and wounding more than 30.
Authorities say the attack happened Wednesday in the town of Kohat.
Police say the bomber blew himself by a passenger bus near Tirah market. Officials say the bus was headed to nearby Orakzai district.
No one has claimed responsibility for the blast.
Meanwhile, a purported spokesman for the Pakistani Taliban has claimed responsibility for a deadly blast that took place Monday during an anti-Taliban meeting.